CA2070740A1 - Interphones d'entree d'immeuble utilisant les cablages et les postes telephoniques existants - Google Patents

Interphones d'entree d'immeuble utilisant les cablages et les postes telephoniques existants

Info

Publication number
CA2070740A1
CA2070740A1 CA 2070740 CA2070740A CA2070740A1 CA 2070740 A1 CA2070740 A1 CA 2070740A1 CA 2070740 CA2070740 CA 2070740 CA 2070740 A CA2070740 A CA 2070740A CA 2070740 A1 CA2070740 A1 CA 2070740A1
Authority
CA
Canada
Prior art keywords
door
intercom
telephone
door bell
intercom system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA 2070740
Other languages
English (en)
Inventor
Robert H. Patrick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2070740 priority Critical patent/CA2070740A1/fr
Publication of CA2070740A1 publication Critical patent/CA2070740A1/fr
Abandoned legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
CA 2070740 1992-06-08 1992-06-08 Interphones d'entree d'immeuble utilisant les cablages et les postes telephoniques existants Abandoned CA2070740A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2070740 CA2070740A1 (fr) 1992-06-08 1992-06-08 Interphones d'entree d'immeuble utilisant les cablages et les postes telephoniques existants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2070740 CA2070740A1 (fr) 1992-06-08 1992-06-08 Interphones d'entree d'immeuble utilisant les cablages et les postes telephoniques existants

Publications (1)

Publication Number Publication Date
CA2070740A1 true CA2070740A1 (fr) 1993-12-09

Family

ID=4149985

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2070740 Abandoned CA2070740A1 (fr) 1992-06-08 1992-06-08 Interphones d'entree d'immeuble utilisant les cablages et les postes telephoniques existants

Country Status (1)

Country Link
CA (1) CA2070740A1 (fr)

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Legal Events

Date Code Title Description
FZDE Dead